can't boot with DiskOnChip2000 / nftlmount UnitSizeFactor ????

Frederic Marmond fmarmond at
Wed May 29 11:53:57 EDT 2002

i made a "nftl_format /dev/mtd0 2097152", from the lastest CVS from 
it works fine, and i can make a fs (ext2) on /dev/nftla1 (after, of 
course having made a fdisk /dev/nftla)

but the message still remain at boot time (see it in dmesg
NFTL driver: nftlcore.c $Revision: 1.82 $, nftlmount.c $Revision: 1.25 $
Sorry, we don't support UnitSizeFactor of != 1 yet.
Could not find valid boot record
Could not mount NFTL device

this check is in nftlmount.c in kernel directory (drivers/mtd/nftlmount.c)
do you mean that i can comment this check?
do you know what is the risk?


Ilguiz Latypov wrote:

>On Wed, 29 May 2002, Frederic Marmond wrote:
>>is there any info to make my nftlmount works, even if i have this
>>message? ("Sorry, we don't support UnitSizeFactor of != 1 yet.")
>I circumvented such problem by re-formatting the chip with the MTD
>nftlformat utility.  The latter has a built-in check for erase block size
>which you may need to remove if you find the risk acceptable.

More information about the linux-mtd mailing list